/**
 * @author: 子龙
 */
package com.fzl.lotterysystem.service.impl;

import com.fzl.lotterysystem.common.errorcode.ServiceErrorCodeConstants;
import com.fzl.lotterysystem.common.exception.ServiceException;
import com.fzl.lotterysystem.common.utils.*;
import com.fzl.lotterysystem.service.VerificationCodeService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.HashMap;
import java.util.Map;

@Service
public class VerificationCodeServiceImpl implements VerificationCodeService {


    // 对于redis里面的key需要标准化：为了区分业务，应该给key定义前缀：
    // VerificationCode_13111111111:1233、User_13111111111:userInfo

    private static final String VERIFICATION_CODE_PREFIX = "VERIFICATION_CODE_";
    private static final Long VERIFICATION_CODE_TIMEOUT = 60L;
    private static final String VERIFICATION_CODE_TEMPLATE_CODE = "SMS_465324787";
    @Autowired
    private SMSUtil smsUtil;

    @Autowired
    private RedisUtil redisUtil;

    /**
     * 发送验证码
     * @param phoneNumber
     */
    @Override
    public void sendVerificationCode(String phoneNumber) {
        //校验手机号
        if(!RegexUtil.checkMobile(phoneNumber)){
            throw new ServiceException(ServiceErrorCodeConstants.PHONE_NUMBER_ERROR);
        }
        //生成随机验证码
        String code= CaptchaUtil.getCaptcha(4);
        //发送验证码
        Map<String,String> map = new HashMap<String,String>();
        map.put("code",code);
        smsUtil.sendMessage(VERIFICATION_CODE_TEMPLATE_CODE,phoneNumber, JacksonUtil.writeValueAsString(map));
        //存入缓存
        redisUtil.set(VERIFICATION_CODE_PREFIX+phoneNumber, code, VERIFICATION_CODE_TIMEOUT);
    }

    /**
     * 获取验证码
     * @param phoneNumber
     * @return
     */
    @Override
    public String getVerificationCode(String phoneNumber) {
        if(!RegexUtil.checkMobile(phoneNumber)){
            throw new ServiceException(ServiceErrorCodeConstants.PHONE_NUMBER_ERROR);
        }
        return redisUtil.get(VERIFICATION_CODE_PREFIX+phoneNumber);
    }
}